Braddyville, IA 51631 Frost Dates
Frost dates for Braddyville, IA, ZIP 51631
Typically, the last spring freeze lands around 04/25, roughly 240 days out. The first fall frost typically arrives around 10/11, about 168 frost-free days later.
Braddyville sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 5b around Braddyville has about 6 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Braddyville compares
At roughly 168 frost-free days, Braddyville places 29,807 of 40,283 ZIP codes in this dataset. Within IA, it ranks 402 of 1,042.
Learn more
the frost range explains how to read the range around Braddyville's dates instead of trusting one, and local microclimates explains what one yard in Braddyville can differ from the 51631 normal.